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Gardner Denver L90 User Manual

Gardner Denver L90
60 pages
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L-SERIES FRAME 5
BASE MOUNTED COMPRESSOR
Original User and Service Manual
125, 150, 180 HP
MODELS:
L90-132E
LRS90-132E
50/60Hz
13-25-639
Version 00
September, 2019

Table of Contents

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Gardner Denver L90 Specifications

General IconGeneral
BrandGardner Denver
ModelL90
CategoryAir Compressor
LanguageEnglish

Summary

Safety and Operational Directives

Hazard Warnings and Prohibitions

Covers prohibitions like breathing compressed air and operating with open doors.

Safety and Technical Information

Safety Regulations

Directs users to observe safety regulations in Section 4 of the manual.

General Safety Regulations

Operational Safety Measures

Emphasizes reading the manual, using trained staff, and ensuring legible notices.

Compressed Air Dangers and Precautions

Compressed Air Hazards

Details dangers like high-pressure air, flying parts, connection risks, and hot/expanding lines.

High Temperature and Suction Dangers

Addresses risks from high temperatures, strong suction, and unexpected tool startup.

Compressed Air Safety

Health Risks and Pressure Safety

Warns about inhaling compressed air and pressure relief valve safety.

Machine-Specific Dangers and Noise

Electrical and Remote Start Hazards

Covers risks of electric shock, poor power quality, and unexpected remote starts.

Water-Cooled Units and Handling Dangers

Biological Hazards in Cooling Water

Warns about legionella growth in open cooling towers.

Dangers During Loading and Moving

Lifting and Handling Precautions

Covers risks of parts falling, incorrect lifting, and damage to components.

Workplace and Maintenance Dangers

Wear and Tear Risks

Highlights dangers from worn components, perished lines, and oil spurts.

Electrical and System Integrity Risks

Covers risks from faulty electrical equipment and system integrity.

Maintenance and Repair Dangers

Maintenance Personnel and Spare Parts

Stresses the need for trained technicians and using correct spare parts.

Electrical and Pressurized System Risks

Details risks of electric shock from condensers and unexpected startups.

Maintenance Safety and Modifications

Maintenance Safety Precautions

Covers safety during maintenance, securing systems, and depressurizing components.

Unauthorized Modifications and Safety Impact

Warns against unauthorized modifications and their effect on safety equipment.

System Schematics and Circuits

Transport and Installation Guidelines

Lifting and Securing Precautions

Provides safety guidelines for lifting and transporting the compressor unit.

Installation Procedures

Levelling and Clearance Requirements

Details requirements for levelling the unit and maintaining clearance for maintenance.

Compressed Air Connection

Connection Safety and Requirements

Warns about defective connections and specifies requirements for safe hookup.

Electrical Connection (USA/CANADA)

Power Supply and Wiring Safety

Warns about fire risks and specifies requirements for power supply and wiring.

Capacitor Discharge and Earthing

Details risks from charged capacitors and earthing requirements for IT networks.

Oil Level Checking

Oil Level Check Procedure

Step-by-step guide to checking the oil level, including safety precautions.

Oil Level Verification

First Commissioning Steps

Pre-Commissioning Safety Checks

Emphasizes safety checks for rotating parts and casing closure.

Commissioning Procedures

Commissioning Steps and Checks

Lists steps like checking oil level, terminals, water supply, and power.

Rotation Direction Verification

Explains how to check and correct the rotation direction of motors and fans.

Routine Commissioning and Shutdown

Routine Operational Checks

Outlines checks for oil level, valves, water supply, and power for routine commissioning.

Malfunction Handling and Emergency Stop

Malfunction Rectification and Restart

Advises not to repeatedly switch on after malfunction without rectification.

Emergency Stop Button Usage

Explains the function and proper use of the emergency stop button.

Electric Motor Maintenance

Maintenance and Inspection Schedule

Safety Precautions for Maintenance

Highlights dangers of high voltage, charged capacitors, and residual pressure.

L Series Maintenance Schedule

Periodic Maintenance Intervals

Provides a comprehensive schedule of maintenance tasks and their frequencies.

Oil Change Procedures

Oil Change Safety Precautions

Details safety measures for shutting down, depressurizing, and handling oil.

Oil Filter Replacement

Oil Filter Replacement Procedure

Step-by-step guide for replacing the oil filter cartridge, including safety.

Fine Oil Separator Replacement Steps

Air Intake Filter Replacement

Pressure Relief Valve

Pressure Relief Valve Safety and Testing

Warns about explosive pressure release and outlines testing procedures.

Switch Cabinet Terminal Connections

Troubleshooting - Unit Issues

Troubleshooting - Operational Problems

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